Weber United Kingdom

webertherm insulation options

Which insulation material is specified in your EWI system will be based on a number of factors including the cost, thermal performance levels required, space available and the construction type. 

webertherm EPS

webertherm EPS is the most popular product used in external wall insulation. It is a cost effective yet durable product and is lightweight, non-toxic, and is completely recyclable.  It is easy to install and will perform for the lifetime of the building.

The Expanded Polystyrene board has fantastic thermal properties with a thermal conductivity lambda value of 0.030 W/mK

  • Available in a standard 1200x600mm size and in a range of 20-200mm thicknesses
  • Forms part of a BBA and NSAI Certified Systems
  • The webertherm EPS board is supplied as Reaction to Fire Class E, containing a flame-retardant additive

webertherm PHS

webertherm PHS is a more expensive form of insulation but the thermal properties of the PHS board are very high – so you can achieve the same thermal properties with much thinner material, which may be crucial for some projects.

The Phenolic board has exceptional thermal properties with a thermal conductivity lambda value of between 0.020 W/m K and 0.023 W/m K depending on the insulation thickness.

  • Available in a standard 1200x600mm size and in a range of 20-70mm thicknesses, other sizes available on demand
  • Forms part of a BBA and NSAI Certified Systems
  • webertherm PHS achieves Class 0 Rating, as defined by Approved Document B in England and Wales, and Technical Booklet E in Northern Ireland. It also achieves medium risk, as defined in the Technical Handbook in Scotland.

webertherm MFD

webertherm MFD thermal properties are similar to EPS, but is slightly more expensive to install.  It does however have additional benefits... Mineral Fibre Insulation is non-combustible and is also good at absorbing acoustics where noise pollution may be an issue.

The Mineral Fibre board has good thermal properties with a thermal conductivity lambda value of 0.035 W/m K.

  • Available in a standard 1200x600mm size and in a range of 30-200mm thicknesses
  • Forms part of a BBA and NSAI Certified Systems
  • webertherm MFD achieves the highest Euroclass Fire Rating of A1 which negates the need to install fire barriers

Other insulation types

Other insulation types are available dependant on the requirement and specification.  Insulation suitable for fire breaks and below DPC are available, please contact Weber Technical Department or your local Weber representative for more information.

Brochures and Guides

Weber United Kingdom
External Wall Insulation Systems

webertherm XM is talk of the town in Stevenage

High performance webertherm XM External Wall Insulation (EWI) has been specified for the showcase Skyline regeneration scheme in Stevenage, Hertfordshire

Stevenage Homes brought up to spec
External Wall Insulation Systems

Stevenage Homes brought up to spec

High performance webertherm XM External Wall Insulation has been specified for homes in the extensive property upgrade programme being carried out by Stevenage Borough Council in Hertfordshire.

Outstanding college extension in Cork
External Wall Insulation Systems

Outstanding college extension in Cork

High performance webertherm XM External Wall Insulation has been installed in two new buildings that form part of the new extensions to St. Angela’s College in the city centre of Cork.

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Click Compare to help you choose the right product for your project, if you need further assistance please email technical@netweber.co.uk

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